SOLAR SYSTEM

UNIVERSE

COMETS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Chunks of ice and dust who orbits are usually a long, narrow ellipse.
A
Meteor
B
Comet
C
Asteroid
D
None of the above
Explanation: 

Detailed explanation-1: -Comets are loose collections of ice, dust, or rock particles whose orbits are usually very long, narrow ellipses.

Detailed explanation-2: -Comets go around the Sun in a highly elliptical orbit. They can spend hundreds and thousands of years out in the depths of the solar system before they return to Sun at their perihelion. Like all orbiting bodies, comets follow Kepler’s Laws-the closer they are to the Sun, the faster they move.

Detailed explanation-3: -A comet nucleus is the solid core of a comet consisting of frozen molecules including water, carbon monoxide, carbon dioxide, methane and ammonia as well as other inorganic and organic molecules-dust. The nucleus of a comet is usually around 6 miles (10 kilometers) across or less (opens in new tab).

Detailed explanation-4: -Comets are small, irregularly shaped bodies in the solar system composed mainly of ice and dust that typically measure a few kilometers across. They travel around the sun in very elliptical orbits that bring them very close to the Sun, and then send them out past Neptune.

Detailed explanation-5: -Long-period comets tend to be the most spectacular comets we see in the night sky, with the two most recent ‘great’ comets – comet Hale-Bopp (1997) and comet Hyakutake (1996) – having predicted orbital periods of several thousand years.

There is 1 question to complete.